TI-2026-05832 Aliases CVE-2026-6645 GHSA-7rjc-r662-4qm8

Insecure Search Path Vulnerability in PaperCut Print Deploy Client for Windows

LOW 33CWE-427Published 2026-06-22 · Updated 2026-06-23

Key facts

Attack vector: Local
Privileges required: Low
User interaction: Passive
Attack complexity: Low
Attack requirements: Present
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-427.

Summary

An insecure process execution vulnerability exists in the pc-printer-updater.exe component of the PaperCut Print Deploy Client for Windows. The application, which typically operates with high-level system privileges, attempts to perform an internal validation check by invoking a secondary system utility using an unqualified file reference. Because the application does not specify an absolute path to this utility, it relies on the operating system's default search order to locate the executable. Under specific conditions, a local attacker with the ability to modify directories within the system's search path could plant a malicious binary that mimics the expected utility. This could result in the malicious code being executed with SYSTEM privileges, leading to a full compromise of the affected host.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00178 7th percentileScored 2026-11-07

Fix Fixed Print Deploy (PaperCut): 1.10.4178

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
PaperCut	Print Deploy	before 1.10.4178	1.10.4178	Patch available	CNA

Print Deploy VendorPaperCut Affected before 1.10.4178 Fixed in 1.10.4178 Patch available CNA

Remediation

Fix · CNA Print Deploy (PaperCut) Fixed in 1.10.4178

Timeline

2026-10-02 Threatist record created from CVE-2026-6645
2026-10-03 Alias added: GHSA-7rjc-r662-4qm8

References

Other 1

https://www.papercut.com/kb/Main/papercut-ng-mf-security-bulletin-june-2026/

TI-2026-56642 PaperCut MF/NG: Unsafe Dynamic Class Loading in Database Connector KEVCVSS 4.0CRITICAL 9.4
TI-2023-12085 Improper access control in PaperCut NG KEVCVSS 3.1CRITICAL 9.8
TI-2023-02373 PaperCut MF/NG 22.0.10 (Build 65996 2023-03-27) - Remote code execution via CSRF KEVCVSS 3.1HIGH 8.8
TI-2026-56284 PaperCut MF/NG: Authentication Bypass KEVCVSS 4.0HIGH 8.8
TI-2023-12086 Improper authentication in PaperCut NG KEVCVSS 3.1HIGH 7.5
TI-2023-20314 PaperCut NG and PaperCut MF before 22.1.3 on Windows allow path traversal, enabling… CVSS 3.1CRITICAL 9.8

See all 42 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences